What did Seneca mean by "we must neither fear death too much, nor love life too much?"?

I'm making a wild guess here - fearing death too much may cripple us, and loving life too would make death a very costly loss, which would also cripple us. I know philosophy likes talking in circles so here I am trying to draw circles LOL.

My reading is probably inaccurate though. It's best to study a quote in context(in this case, within the dialogue).

This reflection makes us see that...

- As we are born one day we will die. That is why death is part of our life, but even knowing this, there is often an inevitable fear surrounding it. And that happens because many times we want to escape from the inevitable, something that can generate anguish and pain.

The truth is that there is no reason to fear something as natural as death

- To stop loving too much is to begin to be the same and not try to be the one the other expects to be, revealing how one is, being authentic. For this, it is inevitable to travel the path of uncertainty, insecurity and fear, and to go on alone, learning to trust in yourself. Women who love too much need to realize that their partner can not be the center of their life, because that center resides within them. To do this they must seek support in order to learn to love, and it can also help them connect with their spirituality. They need to know that dependency attitudes, demands, possessiveness.

If you're afraid of everything that might hurt you, you'll never experience much of life. People who are afraid of dying in a plane crash, as unlikely as that may be, deprive themselves of the experience of travel. People who refuse to take any risks because they want to stay alive, no matter how poor the quality of that life may be, are also depriving themselves. Seneca may also have been referring to the risk of taking part in warfare that is necessary to secure freedom.

I guess he'd been reading Aristotle (i.e. the golden mean).